#1C65B3#1C65B3

#1C65B3 is a mid, vivid cyan. Relative luminance 0.128; OKLCH L 50.6% C 0.142 H 253.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#1C65B3
RGB	rgb(28, 101, 179)
HSL	hsl(211, 73%, 41%)
HSV	hsv(211, 84%, 70%)
CMYK	cmyk(84.4%, 43.6%, 0%, 29.8%)
CIE-LAB	lab(42.47, 7.33, -47.51)
CIE-LCH	lch(42.47, 48.07, 278.77°)
OKLab	oklab(50.57% -0.0394 -0.1362)
OKLCH	oklch(50.57% 0.142 253.9)
XYZ	xyz(13.2662, 12.8072, 44.4119)
Luminance	0.1281 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C65B3 #B36A1C

analogous

#1CB1B3 #1C65B3 #1E1CB3

triadic

#1C65B3 #B31C65 #65B31C

tetradic

#1C65B3 #B31CB1 #B36A1C #1CB31E

square

#1C65B3 #B31CB1 #B36A1C #1CB31E

split-complementary

#1C65B3 #B31E1C #B1B31C

monochromatic

#0B2949 #14477E #1C65B3 #2E83DE #63A3E7

Accessibility & contrast

On white

5.90

#1C65B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#1C65B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C65B3

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C65B3	#FFFFFF	#000000	##FFFFFF
##1C65B3	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6BB6

Deuteranopia (green-blind)

#1F5EB1

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #1c65b3;
/* rgb */ color: rgb(28, 101, 179);
/* oklch */ color: oklch(50.6% 0.142 253.9);

Tailwind

colors: {
  custom: {
    50: '#7390ca',
    500: '#1c65b3',
    950: '#000000',
  },
}

SCSS

$custom: #1c65b3;
$custom-light: #7390ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1c65b3",
  "rgb": {
    "r": 28,
    "g": 101,
    "b": 179
  },
  "hsl": {
    "h": 210.993,
    "s": 72.947,
    "l": 40.588
  },
  "oklch": {
    "l": 0.50572,
    "c": 0.14182,
    "h": 253.9
  },
  "luminance": 0.12809
}

Semantic roles & 50–950 ramp

primary

#1C65B3

secondary

#CB975F

accent

#9738F0

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #1C65B3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →